Dr. Tzu-Shang Liu, MD PHD
What this data tells you about Dr. Liu
Dr. Tzu-Shang Liu is an orthopedic surgery specialist in Apple Valley, CA, with 18 years of NPI registration. Based on federal Medicare data, Dr. Liu performed 3,337 Medicare services across 656 unique beneficiaries.
Between the years covered by Open Payments, Dr. Liu received a total of $13,044 from 18 pharmaceutical and/or device companies across 132 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in orthopedic surgery. Most payments are for meals and travel — low-value interactions common across virtually all practicing physicians. Patients may wish to discuss these relationships with their provider.
The Data Coverage level for Dr. Liu is Very High — reflecting how much public federal data is available about this provider. Patients are encouraged to use this data as one of several factors when choosing a healthcare provider.
Medicare Practice Summary
Medicare Utilization ↗Top procedures by volume
Ranked by number of services performed for Medicare patients. Avg. submitted charge is what the provider billed; avg. Medicare payment is what CMS paid.
| Procedure | Volume | Avg. paid | Avg. submitted |
|---|---|---|---|
| Extended-release steroid injection (Zilretta) An injection of triamcinolone acetonide using a preservative-free, extended-release microsphere formulation. The dosage is measured in milligrams. |
1,760 | $13 | $141 |
| Office visit, established patient (30-39 min) A follow-up office visit for an existing patient lasting between 30 and 39 minutes. The visit involves medical evaluation and management of the patient's condition. |
425 | $99 | $1,082 |
| Steroid injection (triamcinolone) A 10 mg injection of triamcinolone acetonide, a corticosteroid medication. This code specifies the drug and dosage administered. |
304 | $1 | $9 |
| Ultrasound-guided large joint aspiration or injection This procedure uses ultrasound imaging to guide the removal of fluid from or the injection of medication into a large joint. |
244 | $83 | $854 |
| Office visit, established patient (20-29 min) An office visit for an existing patient lasting between 20 and 29 minutes. The visit involves medical evaluation and management of the patient's condition. |
187 | $73 | $768 |
| Viscosupplementation injection for joint An injection of hyaluronic acid or a derivative into a joint to provide lubrication and cushioning. |
110 | $58 | $608 |
| Knee X-ray, 1-2 views An X-ray imaging test of the knee joint using one to two different angles to visualize the bones and surrounding structures. |
81 | $28 | $298 |
| New patient office visit (45-59 min) An initial office visit for a new patient lasting between 45 and 59 minutes. This code covers the total time spent by the physician or qualified healthcare professional on the date of the encounter. |
55 | $115 | $1,410 |
| Knee X-ray, 4 or more views An imaging test using X-rays to create multiple pictures of the knee joint from different angles. |
42 | $38 | $404 |
| Hip X-ray, 2-3 views An X-ray imaging test of the hip joint using two to three different angles to visualize the bones and surrounding structures. |
29 | $37 | $410 |
| Shoulder X-ray, 2+ views An X-ray imaging test of the shoulder joint using at least two different angles to visualize the bones and surrounding structures. |
27 | $28 | $301 |
| Wrist X-ray, minimum 3 views An imaging test using X-rays to capture at least three different angles of the wrist bones and joints. |
25 | $35 | $357 |
| Initial hospital admission, high complexity Initial hospital inpatient or observation care for a new patient involving high-level medical decision making, with at least 75 minutes total time on the date of the encounter. |
15 | $142 | $1,640 |
| Drug delivery implant insertion A procedure to place an implant that releases medication into the body's tissue. |
11 | $28 | $869 |
| Computer-assisted surgery for muscle and bone procedure A surgical procedure involving muscles or bones that utilizes computer technology to assist with planning or execution. |
11 | $119 | $1,220 |
| Total knee replacement | 11 | $1,066 | $10,870 |
Industry Payment Transparency
Open Payments through 2024 ↗Payment profile
Industry payments classified by relationship type. Not all payments are equal — research and consulting reflect different relationships than speaking programs or meals.
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
Payments by company (2024)
All-time payments by company (2018-2024) ›
Associated products mentioned in payments ›
Most payments (70%) are for meals and travel — low-value interactions that are common across virtually all practicing physicians.
Geographic Context
0.0 mi
Data Sources
| Provider Registry | ✓ NPPES | Weekly updates |
| Medicare Enrollment | ✓ PECOS | Monthly updates |
| Practice Data | ✓ Medicare Util. | Annual (CY lag) |
| Industry Payments | ✓ Open Payments | CY 2024 |
| Disciplinary History | — Not public | N/A |
This provider has data in 4 of 4 available federal datasets, with a Data Coverage level of Very High. This reflects how much public data is available about a provider. How we calculate this →
Summary
Dr. Liu is a clinical cardiology specialist, with above-average Medicare volume (top 17% in CA), with low-engagement industry engagement, with 18 years of NPI registration.
This summary is auto-generated from federal data, describing data availability and patterns. Read our methodology →
Frequently Asked Questions
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All data on this page is sourced verbatim from public federal records published by the U.S. Centers for Medicare & Medicaid Services (CMS): NPPES ↗, Open Payments ↗, Medicare Provider Utilization ↗, and PECOS. Publication is mandated by the Physician Payments Sunshine Act (§6002 ACA, 42 U.S.C. §1320a-7h) and the Freedom of Information Act.
This page is not medical advice, an endorsement, a recommendation, or a quality rating. Data Coverage reflects data completeness — how much federal information exists for this provider — not clinical performance, patient outcomes, or quality of care. Always verify information directly with the provider and consult a licensed clinician before making medical decisions.
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